|Publication number||US6751486 B1|
|Application number||US 09/670,721|
|Publication date||Jun 15, 2004|
|Filing date||Sep 28, 2000|
|Priority date||Oct 6, 1999|
|Also published as||DE69914332D1, EP1091467A1, EP1091467B1|
|Publication number||09670721, 670721, US 6751486 B1, US 6751486B1, US-B1-6751486, US6751486 B1, US6751486B1|
|Inventors||Romain Guillot, Christian Pitisi|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (6), Referenced by (4), Classifications (8), Legal Events (4)|
|External Links: USPTO, USPTO Assignment, Espacenet|
The invention relates to a hands free charger and a handset adapted to the charger as claimed in the independent claims.
From DE 19633171 A1 an apparatus is known that comprises a charger and control for accumulator containing in the handset, for the transmission of the charging energy from the support housing to the supported handset the housing comprises inductive generators, while the handset is fitted with inductive receptors.
Preferably the inductive generators and receptors are so arranged as to lie in mutual opposition with the handset located on the support housing. At least two pairs of inductive generators and receptors are provided for transmission of the charge current or voltage.
The realization of a contact free charger is a costly solution for a set of inductive means must build in the charger and the handset.
It is also know to charge a cordless handset, for example a handset in a DECT telecommunication device, with help of a locking connector. The problem is that the handset must be pressed against the charger contacts because of the large number of contacts to be used in the hands free functions. The pressure needed is in prior art made by a locking connector which is realized in the from of a hook. The handset must be connected in a way that the handset is rotated into the hook and extracted in the same rotating way. If the user forgets this the charger is taken away—a very uncomfortable situation.
The object of the invention is to build a charger and a adapted handset that allows an easy handling of handset for charging. In parallel the pressure on the contacts must be sufficient for charging.
The invention solves the problem by using a connector without locking mean but using a mean for centering the handset in the charger. The connector on the side of the charger is pressed on the handset with a spring.
The advantage is that the centering mean is able to hold the handset against the spring force of the connector of the charger.
Other advantages are described in the dependent claims and in the following description.
FIG. 1 shows a handset on a charger where the charger is structured to neutralize the force of the connector spring.
FIG. 2 a handset with a spur.
In FIG. 1 a handset 2 is laying in a charging station 1. The charging station has a special structure with a nose or a ridge 3. This ridge is adapted to a recess 4 of the handset 2. The handset has a connector 6 for charging its batteries. This connector is in connection with a connector 5 of the charging station 1. This connector 5 of the charging station 1 is pressed towards the connector of the handset with help of a spring 7. The force of the spring must be high enough to grant good contact between the connector parts. On the other side the force of the spring must be balanced by the force the nose or ridge of the charging station can abduct. The connector of the handset 6 can be on the surface of the handset or in a special recess. In the last case the connector of the charging station can be applied into the recess of the handset.
FIG. 2 shows another embodiment of the invention. The handset 2 is laying on a charging station 2. The handset is contacted by connector 6 of the handset and connector 5 of the charging station. Additionally the handset has a recess for applying a spur 8. This spur 8 is connected to a spring 9. The locking of the handset is done by the spur 8. The spur can be designed as a translating spur with the help of the spring 9.
Once locked the handset has a over stroke in the direction of the connector 6, so that is can disengage from the spur easily. The handset can not rotate in the charging station due to the spur. Scratches on the handset's shell are reduced for the spur disappears in the charging stations shell when the handset is laid on the charging station. The spring 9 is dimensioned in the way the to grant the disappearing functionality. The spur's spring 9 also suppress any possible motion of the handset when dialing a number on the handset lying on the charging station.
The inventional solution has the advantage that common connectors can be used.
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|US4710596 *||Dec 31, 1984||Dec 1, 1987||General Electric Company||Telephone unit adapted for vertical and horizontal mounting|
|US4731813||Dec 30, 1983||Mar 15, 1988||Motorola, Inc.||Address encoding system for portable battery-operated devices|
|US4850006 *||Nov 16, 1987||Jul 18, 1989||Nec Corporation||Booster and charger unit used for hand-held portable telephone and having overheat protection circuit|
|US6108568 *||Dec 3, 1997||Aug 22, 2000||U.S. Philips Corporation||Cordless telephony device rechargeable in any position|
|US6438229 *||May 15, 1997||Aug 20, 2002||Nokia Mobile Phones Limited||Radio telephone holder with battery charging and movable cradle having telephone lock|
|DE19633171A1||Aug 17, 1996||Feb 19, 1998||Deutsche Telekom Ag||Cordless telephone hand-piece with support housing|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US8305741 *||Jan 4, 2010||Nov 6, 2012||Hewlett-Packard Development Company, L.P.||Interior connector scheme for accessorizing a mobile computing device with a removeable housing segment|
|US8854798 *||Oct 2, 2009||Oct 7, 2014||Qmotion Incorporated||Transmitter holder apparatus and method|
|US20100172090 *||Jul 8, 2010||Manjirnath Chatterjee||Interior connector scheme for accessorizing a mobile computing device with a removeable housing segment|
|US20120021808 *||Jan 26, 2012||Google Inc.||Mobile computing device dock|
|U.S. Classification||455/573, 455/575.1, 455/90.3, 379/449, 379/322|
|Sep 28, 2000||AS||Assignment|
Owner name: ALCATEL, FRANCE
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GUILLOT, ROMAIN;PITISI, CHRISTIAN;REEL/FRAME:011142/0647
Effective date: 20000905
|Dec 24, 2007||REMI||Maintenance fee reminder mailed|
|Jun 15, 2008||LAPS||Lapse for failure to pay maintenance fees|
|Aug 5, 2008||FP||Expired due to failure to pay maintenance fee|
Effective date: 20080615